I'm only slightly younger than you, and, like you, have worked in many languages. And my very favorite were the LISPs (zeta, common, scheme). But the dev env, p

I'm only slightly younger than you, and, like you, have worked in many languages. And my very favorite were the LISPs (zeta, common, scheme). But the dev env, projects, and my time in life were all part of that positive experience. I was in my 20s (a super learning time) working on my own code on Symbolics Lisp machines. Fortran/Ratfor were my least favorite, since that work was always maintaining code written (and barely commented) by someone I didn't know. Smalltalk and Erlang are my next choices. Same reasons as LISP.